ChrsLytn
OBS Enthusiast
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98 k1500 5.7 321k miles
I don't know if this screen shot is cooperating.
LTFT 1 is 19.6% LTFT 2 is 15.2%
These mean extra fuel is being added to trying to correct the lean condition.
Is that right? And it could be a half dozen or more possibles? From an exhaust leak to an intake leak. I bought a hand vacuum/pressure pump. Is it good for finding a vacuum leak? How would I go about hooking it up? Thanks